add event bus.

Author: CarGuo

lib/common/event/HttpErrorEvent.dart

@@ -0,0 +1,12 @@
+/**
+ * Created by guoshuyu
+ * Date: 2018-08-16
+ */
+
+class HttpErrorEvent {
+  final int code;
+
+  final String message;
+
+  HttpErrorEvent(this.code, this.message);
+}

lib/common/net/Code.dart

@@ -1,6 +1,5 @@
-import 'package:fluttertoast/fluttertoast.dart';
-import 'package:gsy_github_app_flutter/common/style/GSYStyle.dart';
-
+import 'package:event_bus/event_bus.dart';
+import 'package:gsy_github_app_flutter/common/event/HttpErrorEvent.dart';
 ///错误编码
 class Code {
   ///网络错误
@@ -14,43 +13,13 @@ class Code {
 
   static const SUCCESS = 200;
 
+  static final EventBus eventBus = new EventBus();
+
   static errorHandleFunction(code, message, noTip) {
-    switch (code) {
-      case NETWORK_ERROR:
-        if(!noTip) {
-          Fluttertoast.showToast(msg: GSYStrings.network_error);
-        }
-        return GSYStrings.network_error;
-      case 401:
-        //TODO 授权逻辑
-        /*if (Actions.currentScene !== 'LoginPage') {
-          Actions.reset("LoginPage");
-        }*/
-        if(!noTip) {
-          Fluttertoast.showToast(msg: GSYStrings.network_error_401);
-        }
-        return GSYStrings.network_error_401; //401 Unauthorized
-      case 403:
-        if(!noTip) {
-          Fluttertoast.showToast(msg: GSYStrings.network_error_403);
-        }
-        return GSYStrings.network_error_403;
-      case 404:
-        if(!noTip) {
-          Fluttertoast.showToast(msg: GSYStrings.network_error_404);
-        }
-        return GSYStrings.network_error_404;
-      case NETWORK_TIMEOUT:
-        //超时
-        if(!noTip) {
-          Fluttertoast.showToast(msg: GSYStrings.network_error_timeout);
-        }
-        return GSYStrings.network_error_timeout;
-      default:
-        if(!noTip) {
-          Fluttertoast.showToast(msg: GSYStrings.network_error_unknown + " " + message);
-        }
-        return GSYStrings.network_error_unknown;
+    if(noTip) {
+      return message;
     }
+    eventBus.fire(new HttpErrorEvent(code, message));
+    return message;
   }
 }

lib/common/style/GSYStyle.dart

@@ -207,18 +207,6 @@ class GSYConstant {
   );
 }
 
-///字符文本
-class GSYStrings {
-
-
-  static const String network_error_401 = "[401错误可能: 未授权 \\ 授权登录失败 \\ 登录过期]";
-  static const String network_error_403 = "403权限错误";
-  static const String network_error_404 = "404错误";
-  static const String network_error_timeout = "请求超时";
-  static const String network_error_unknown = "其他异常";
-  static const String network_error = "网络错误";
-}
-
 class GSYICons {
   static const String FONT_FAMILY = 'wxcIconFont';
 

lib/main.dart

@@ -1,15 +1,22 @@
+import 'dart:async';
+
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:event_bus/event_bus.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:fluttertoast/fluttertoast.dart';
+import 'package:gsy_github_app_flutter/common/event/HttpErrorEvent.dart';
 import 'package:gsy_github_app_flutter/common/localization/GSYLocalizationsDelegate.dart';
 import 'package:gsy_github_app_flutter/common/redux/GSYState.dart';
 import 'package:gsy_github_app_flutter/common/model/User.dart';
 import 'package:gsy_github_app_flutter/common/style/GSYStyle.dart';
+import 'package:gsy_github_app_flutter/common/utils/CommonUtils.dart';
 import 'package:gsy_github_app_flutter/page/HomePage.dart';
 import 'package:gsy_github_app_flutter/page/LoginPage.dart';
 import 'package:gsy_github_app_flutter/page/WelcomePage.dart';
 import 'package:flutter_redux/flutter_redux.dart';
 import 'package:redux/redux.dart';
+import 'package:gsy_github_app_flutter/common/net/Code.dart';
 
 void main() {
   runApp(new FlutterReduxApp());
@@ -45,9 +52,7 @@ class FlutterReduxApp extends StatelessWidget {
               GSYLocalizationsDelegate.delegate,
             ],
             locale: store.state.locale,
-            supportedLocales: [
-              store.state.locale
-            ],
+            supportedLocales: [store.state.locale],
             theme: store.state.themeData,
             routes: {
               WelcomePage.sName: (context) {
@@ -82,6 +87,10 @@ class GSYLocalizations extends StatefulWidget {
 }
 
 class _GSYLocalizations extends State<GSYLocalizations> {
+
+
+  StreamSubscription stream;
+
   @override
   Widget build(BuildContext context) {
     return new StoreBuilder<GSYState>(builder: (context, store) {
@@ -92,4 +101,45 @@ class _GSYLocalizations extends State<GSYLocalizations> {
       );
     });
   }
+
+  @override
+  void initState() {
+    super.initState();
+    stream =  Code.eventBus.on<HttpErrorEvent>().listen((event) {
+      errorHandleFunction(event.code, event.message);
+    });
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    if(stream != null) {
+      stream.cancel();
+      stream = null;
+    }
+  }
+
+  errorHandleFunction(int code, message) {
+    switch (code) {
+      case Code.NETWORK_ERROR:
+        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error);
+        break;
+      case 401:
+        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_401);
+        break;
+      case 403:
+        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_403);
+        break;
+      case 404:
+        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_404);
+        break;
+      case Code.NETWORK_TIMEOUT:
+        //超时
+        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_timeout);
+        break;
+      default:
+        Fluttertoast.showToast(msg: CommonUtils.getLocale(context).network_error_unknown + " " + message);
+        break;
+    }
+  }
 }

pubspec.lock

@@ -162,6 +162,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
+  event_bus:
+    dependency: "direct main"
+    description:
+      name: event_bus
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.1"
   fixnum:
     dependency: transitive
     description:

pubspec.yaml

@@ -29,8 +29,9 @@ dependencies:
   dio: ^1.0.0
   flutter_localizations:
     sdk: flutter
-  intl: 0.15.6
-  intl_translation: 0.16.7
+  intl: ^0.15.6
+  intl_translation: ^0.16.7
+  event_bus:  ^1.0.1
 
 dev_dependencies:
   build_runner: ^0.7.6